siege of a medieval castle in winter while two great armies face each other fighting below with banners and flags, catapults throw stones at the castle destroying its stone walls, heavy snow storm, fantasy, medieval, fire and explosions and grey smoke here and there, a huge dragon half covered by clouds of smoke and fog is lightly seen flying in the sky and throwing fire through its jaws, trending on artstation, detailed oil on canvas painting by greg rutkowski and raoul vitale